Biochemical Properties


Protein Name: transcription initiation factor TFB

Strain: Halorubrum saccharovorum DSM 1137


Number of amino acids: 105

Molecular weight: 11258.5

Theoretical pI: 4.58

Total number of negatively charged residues (Asp + Glu): 18

Total number of positively charged residues (Arg + Lys): 13

Instability index:The instability index (II) is computed to be 50.46

This classifies the protein as unstable

Aliphatic index: 83.43

Grand average of hydropathicity (GRAVY): -0.374

Amino acid composition (%):

Ala Arg Asn Asp Cys Gln Glu Gly His Ile Leu lys Mcf Phe Pro Ser Thr Trp Tyr Val
16.7 9.8 1.0 13.7 1.0 2.9 3.9 2.9 0.0 2.9 9.8 2.9 2.0 2.0 3.9 8.8 4.9 2.9 2.0 5.9


Estimated half-life:
The N-terminal of the sequence considered is M (Met).
The estimated half-life is: 30 Hours (Mammalian reticulocytes, in vitro)

Atom composition:
Carbon Hydrogen Nitrogen Oxygen Sulphur
487 774 142 159 3